Portfolio Category: Structural

LJB provided structural design and drafting of this five-story class A office building in Centennial, Colorado. Inova Dry Creek II is the second five-story tilt-up office building constructed in the Denver market, and it is the second in a seven-building business park of mixed-use properties. It is also a 2018 Tilt-Up Achievement Award winner.
The 235,800-square-foot building is L-shaped, and the exterior walls are site-cast tilt-up concrete panels with expansive areas of...

The Rinker Sports Center concept was originally designed as a conventional structural system of CMU block and cast-in-place columns and beams. Since all members of the design team were familiar with the benefits of tilt-up construction, the concept was changed to take advantage of efficiencies of the tilt-up method.
The architecture style of the building is primarily Mediterranean, and tilt-up afforded the architect the flexibility to introduce finishes, such as different...

For this unique pilot project, LJB designed the replacement of two prestressed concrete box beam bridges. The purpose of the project was to compare the long-term sustainability of using different types of construction materials. One of the bridges was designed using conventional materials, while the other bridge uses long-lasting carbon fiber composite cable (CFCC - Tokyo Rope) strands and stainless steel bar reinforcing in the superstructure. Both bridges were replaced...